Broadband phase-shifting mirrors for ultrafast lasers

M. Trubetskov, T. Amotchkina*, L. Lehnert, J. Sancho-Parramon, K. Golyari, V. Janicki, M. Ossiander, M. Schultze, V. Pervak

*Korrespondierende/r Autor/-in für diese Arbeit

Publikation: Beitrag in einer FachzeitschriftArtikelBegutachtung


Metal–dielectric phase-shifting multilayer optical elements have been developed, providing broadband, virtually dispersion-free polarization manipulation down to the few-cycle level. These optical elements are Ag/Al 2O 3 mirrors that operate in the spectral range from 500 to 100 nm, exhibiting reflectance higher than 95%, and a differential phase shift between the s- and p-polarization of about 90 distributed over four bounces. The mirrors have been designed, produced, and reliably characterized based on spectral photometric and ellipsometric data using a non-parametric approach as well as a multi-oscillator model. The optical elements were implemented into a few-cycle laser system, where they transformed linearly polarized few-cycle light pulses to circular polarization.

Seiten (von - bis)A123-A127
FachzeitschriftApplied Optics
PublikationsstatusVeröffentlicht - 10 Feb 2020
Extern publiziertJa


  • Circular polarization
  • Optical coating design
  • Optical elements
  • Phase modulation
  • Phase shift
  • Short pulse operation

ASJC Scopus subject areas

  • Ingenieurwesen (sonstige)
  • Atom- und Molekularphysik sowie Optik
  • Elektrotechnik und Elektronik

Fields of Expertise

  • Advanced Materials Science


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